About Wm. Mulherin’s Sons (Philadelphia, PA) Wm. Mulherin’s Sons is a wood ‑ fired Italian restaurant housed in a restored 19th ‑ century whiskey blending and bottling facility in the heart of Fishtown. The space blends historic character with modern craftsmanship — original brick, timber beams, and industrial details paired with thoughtful design, intimate lighting, and a warm, lived ‑ in feel. Known for its handmade pastas, seasonal plates, and wood ‑ fired pizzas, Mulherin’s has become a neig